BRAKE DISC ARRANGEMENT

Abstract

A hub configured to rotate about an axis of rotation in the circumferential direction, and having a connection surface and a connection opening, the connection opening configured to at least partially receive a connector, the connection surface configured to contact indirectly and/or directly with a contact surface of a brake disc, where the contact surface does not include connection openings.

Claims

1.-29. (canceled)

30. A brake disc arrangement, comprising a brake disc configured to rotate about an axis of rotation in a circumferential direction, the brake disc having a contact surface and a mounting surface; a hub having a connection surface and a connection opening; and at least one connector; wherein a mounting opening extends from the mounting surface; wherein the contact surface is configured to indirectly or directly contact the connection surface of the hub; wherein the connector is configured to extend at least partially in the mounting opening and the connection opening; and wherein the mounting surface is free of hub contact.

31. The brake disc arrangement according to claim 30, wherein the hub is one piece.

32. The brake disc arrangement according to claim 30, wherein the hub comprises a core portion, a cantilever portion and a brake disc connection portion, the cantilever portion and the brake disc connection portion extend radially in a radial direction from the core portion, the cantilever portion comprises a wheel contact surface and at least one connection opening, and wherein the brake disc connection portion comprises at least one contact surface.

33. The brake disc arrangement according to claim 32, wherein the core portion includes an intermediate portion which lies in a direction of the axis of rotation between the cantilever portion and the brake disc connection portion, and wherein the intermediate portion does not include ribs.

34. The brake disc arrangement according to claim 33, wherein the intermediate portion has a more tapered outer geometry compared to the cantilever portion and/or compared to the brake disc connection portion.

35. The brake disc arrangement according to claim 30, wherein the intermediate portion, in at least one cutting plane the normal of which is parallel to the axis of rotation, forms a cross-section which has a circular outer contour around the axis of rotation.

36. The brake disc arrangement according to claim 30, wherein the hub has ribs which preferably run in a direction of a radial direction and/or in a direction of the axis of rotation, at least one connection surface forms part of a respective rib, and wherein the ribs extend only in the brake disc connection portion.

37. The brake disc arrangement according to claim 30, wherein the hub has a wheel bolt receptacle in the cantilever portion.

38. The brake disc arrangement according to claim 30, wherein at least one connection opening, completely penetrates the cantilever portion of the hub.

39. The brake disc arrangement according to claim 30, wherein the hub has air ducts which extend in a direction of the axis of rotation.

40. The brake disc arrangement according to claim 30, wherein the hub has at least one bearing contact surface, for a wheel bearing, and wherein the core portion includes the at least one bearing contact surface.

41. The brake disc arrangement according to claim 30, wherein the at least one bearing contact surface includes at least two bearing contact surfaces.

42. The brake disc arrangement according to claim 30, wherein the hub has at least one centering projection, and wherein the at least one centering projection delimits a connection surface in an outward direction of a radial direction.

43. The brake disc arrangement according to claim 30, wherein the hub has a plurality of connection surfaces, and wherein each of the connection surfaces is bounded in an outward direction of a radial direction by a centering projection.

44. The brake disc arrangement according to claim 30, wherein the brake disc has projections projecting in a direction of the axis of rotation and/or in a radial direction, at least one mounting surface forms a part of a projection, and wherein the mounting surface forms an edging end face for the projection in the direction of the axis of rotation.

45. The brake disc arrangement according to claim 44, wherein the projections are engageable with a complementary toothing of the hub.

46. The brake disc arrangement according to claim 30, wherein the brake disc and the hub are configured to be torquingly connected via a polygonal connection.

47. The brake disc arrangement according to claim 46, wherein a toothing of the brake disc has a play in the circumferential direction relative to a toothing of the hub of between 0.1 mm and 2 mm, and/or wherein the polygon connection has a play in the circumferential direction, in particular between 0.1 mm and 2 mm.

48. The brake disc arrangement according to claim 30, wherein the contact surface is one of a plurality of contact surfaces, and wherein the mounting surfaces is one of a plurality of mounting surfaces, and wherein the plurality of contact surfaces and the plurality of mounting surfaces are arranged alternately in the circumferential direction.

49. The brake disc arrangement according to claim 30, wherein the mounting opening is one of a plurality of mounting openings, and wherein a distance of each of the mounting openings from the axis of rotation is greater than a mean distance of the contact surface from the axis of rotation.

50. The brake disc arrangement according to claim 30, wherein a ratio of a mean distance of the contact surface from the axis of rotation to a mean distance of the mounting opening from the axis of rotation is in a range of 0.6 to 1.5.

51. The back disc arrangement of claim 50, wherein the range is 0.8 to 1.2.

52. The back disc arrangement of claim 51, wherein the range is 0.9 to 1.1.

53. The brake disc arrangement according to claim 30, wherein the contact surface and/or the connection surface has/have an averaged normal substantially parallel to a direction of extension of the connector and/or to the axis of rotation.

54. The brake disc arrangement according to claim 30, wherein the mounting opening completely penetrates the brake disc.

55. The brake disc arrangement according to claim 30, wherein the brake disc is bent and/or V-shaped and/or shielded in a direction of a radial direction, at least in a non-assembled state, away from the wheel hub.

56. The brake disc arrangement according to claim 30, wherein a ratio of a maximum extension of the brake disc in a direction of the axis of rotation to a maximum extension of the hub in the direction of the axis of rotation is in a range of 0.07 to 0.5.

57. The brake disc arrangement of claim 56, wherein the range is 0.1 to 0.3.

58. The brake disc arrangement of claim 57, wherein the range is 0.15 to 0.25.

59. The brake disc arrangement according to claim 30, wherein a ratio of a maximum extension of the connector to a maximum extension of the hub in a direction of the axis of rotation is in a range of 0.3 to 1.1.

60. The brake disc arrangement of claim 59, wherein the range is 0.5 to 0.95.

61. The brake disc arrangement of claim 60, wherein the range is 0.7 to 0.85.

62. The brake disc arrangement according to claim 30, wherein the brake disc is transversely ventilated.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Further advantages and features of the present invention result from the following description with reference to the figures. Individual features of the embodiments shown may also be used in other embodiments, unless this has been expressly excluded. It is shown in:

[0045] FIG. 1 is a section through a brake disc arrangement;

[0046] FIG. 2 is a further section through a brake disc arrangement;

[0047] FIG. 3 is an external view of a brake disc arrangement;

[0048] FIG. 4 is an external view of a hub; and

[0049] FIG. 5 is a section through a hub.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0050] FIG. 1 shows a sectional view of a brake disc arrangement 1. The brake disc arrangement 1 comprises a brake disc 10, a hub 30 and a plurality of connection means 50. The brake disc arrangement 1 is designed to rotate about the axis of rotation A in a positive or negative circumferential direction U. The brake disc 10 has a plurality of contact surfaces 12 (not shown in FIG. 1) and a plurality of mounting surfaces 14. The brake disc 10 has a plurality of contact surfaces 12 (not shown in FIG. 1) and a plurality of mounting surfaces 14. In the embodiment shown, a mounting opening 16 is made in each of the mounting surfaces 14, in which a connection means 50 extends at least partially. The connection means 50, which are at least essentially parallel to the axis of rotation A, also extend through the connection openings 36 of the hub 30 and thus connect the brake disc 10 to the hub 30. The hub 30 comprises—viewed in the radial direction R—in its outer region a plurality of wheel bolt receptacles 42, each of which receives a wheel bolt. In addition, the hub 30 also has two bearing contact surfaces 40, against each of which a tapered roller bearing rests.

[0051] FIG. 2 shows a further embodiment of a brake disc arrangement 1, wherein the section shown in FIG. 2 can match the embodiment shown in FIG. 1. However, the sectional planes in FIG. 1 and FIG. 2 are rotated relative to one another by a certain angle in the circumferential direction U. The hub 30 of the brake disc arrangement 1 shown in FIG. 2 has a plurality of ribs 34, with a connection surface 32 in each case forming a bordering top surface of the rib 34 in the direction of the axis of rotation A. The connection surfaces 32 make direct contact with the opposite contact surface 12 of the brake disc 10. In order to achieve a particularly simple mounting of the brake disc 10 on the wheel hub 30, the wheel hub 30 has a centring projection 20 which engages in a complementary centring recess of the brake disc 10.

[0052] FIG. 3 shows an external view of a brake disc arrangement 1. The brake disc arrangement 1 has a plurality of connection means 50, each of which extends alternately at least partially between ribs 34 of the hub 30.

[0053] FIG. 4 shows a hub 30. This hub 30 has a brake disc connection portion 64, an intermediate portion 61 and a cantilever portion 62. The intermediate portion 61 is arranged in the direction of the axis of rotation between the brake disc connection portion 64 and the cantilever portion 62 and connects these two portions with each other. The cantilever portion 62 has a wheel contact surface 66 whose outward normal faces away from the brake disc connection portion 64 and is parallel to the axis of rotation A. The hub 30 has rib elements 34 in the cantilever portion 62, but these rib elements 34 do not extend beyond the intermediate portion 61. In an imaginary extension to the ribs 34 arranged in the cantilever portion 62, however, a rib 34 also extends in each case in the brake disc connection portion 64. These ribs 34 in the brake disc connection portion 64 each form a connection surface 32, which are each bounded outwards in the radial direction R by a centring projection 20.

[0054] FIG. 5 shows a sectional view of a hub 30, which in principle can match the embodiment shown in FIG. 4. As can be seen in FIG. 5, the connection openings 36 extend completely through the cantilever portion 62 of the hub 30. In addition to these connection openings 36, the cantilever portion 62 also has wheel bolt receptacles 42, wherein the direction of extension of the wheel bolt receptacles 42 is parallel to the direction of extension of the connection openings 36. In addition to the cantilever portion 62, the hub 30 also has an intermediate portion 61 and a brake disc connection portion 64. The intermediate portion 61 is formed entirely by the cantilever portion 60, from which the cantilever portion 62 and the brake disc connection portion 64 each extend. The brake disc connection portion 64 is not formed continuously as seen in the circumferential direction U, but is formed in each case by individual ribs 34 which extend in the radial direction from the core portion 60. The core portion 60 forms at least one wheel contact surface 66.

LIST OF REFERENCE SIGNS

[0055] 1—brake disc arrangement [0056] 10—brake disc [0057] 12—contact surface [0058] 14—mounting surface [0059] 16—mounting opening [0060] 20—centring projection [0061] 30—hub [0062] 32—connection surface [0063] 34—rib [0064] 36—connection opening [0065] 40—bearing contact surface [0066] 42—wheel bolt receptacle [0067] 50—connection means [0068] 60—core portion [0069] 61—intermediate portion [0070] 62—cantilever portion [0071] 64—brake disc connection portion
66—wheel contact surface [0072] A—axis of rotation [0073] U—circumferential direction [0074] R—radial direction